青海果洛龙洼金矿地质特征及找矿潜力分析

东昆仑地区是青海省重要的贵金属、有色金属及黑色金属成矿带，其金矿储量在青海省矿产资源中占有显著的地位。果洛龙洼金矿床位于东昆仑造山带东段，为一韧性剪切带型金矿床，也是近年来新发现的又一具有重要经济价值的金矿床，目前在该矿床已发现7条金矿化体，找矿潜力较大。通过对该矿床地质特征及找矿潜力进行分析，认为该区矿化体类型主要是以黄铁矿为主的硫化物石英脉及硫化物蚀变岩型矿体，矿石矿物以黄铁矿和黄铜矿为主，围岩蚀变主要为硅化、绢云母化、黄铁矿化和绿泥石化。根据矿区出现的脉状矿化、细脉侵染型矿化特征，矿区剪切带成矿系统中具有石英脉型-构造蚀变岩型金矿成矿系列，对在该地区深部及外围的进一步找矿，扩大矿床规模等具有重要意义。

Analysis on the Geological Characteristics and Potential of Ore Prospecting of the Guoluolongwa Gold Deposit in Qinghai Province

East Kunlun metallogenic belt in Qinghai Province is an important metallogenic belt,including precious metals,non-ferrous metal and black metal.Goluolongwa gold bed is a ductile shear zone type gold deposit located in the east section of Eastern Kunlun Orogenic belt,which is another important economic value gold deposit discovered recently,7 gold mineralized bodies have been discovered until now,and it has a considerable potentiality for prospecting.By research on the geological characteristics,metallogenic regularity and potential analysis,it is considered that Guoluolongwa gold deposits are pyrite-dominated sulphide quartz vein and sulphide altered rock type.The alteration of wall-rocks in the deposit includes silicification,pyrite,and chloritization.According to the altered characteristics,the gold deposits shear system posses quartz vein type and thin vein ore-forming series,which is significant for ore-prospecting in the depth and periphery of this area.